As seen in Fig. 1, AT&T and Verizon control over 50% of the total revenue in 2009. AT&T maintained its number one position in 2009 with 28.2% market share, closely followed by Verizon at 24.4%. Wrapping up the remaining spots are Sprint Nextel,Comcast, Deutsche Telekom, Qwest, Cox, CenturyLink, Time Warner Cable and Charter Communications, each having less than 10% market share. All in all, the combined revenue of the top-10 players amounted to $274.8bn in 2009 representing 77% of the total.